Improvement in molding



UNITED STATES PATENT OEEIGE.

ARMON KING, 0F UTIGA, NEW YORK, ASSIGNOR TO HIMSELF AND JOHN H.

CHAPMAN, or sAME PLAGE.

IMPROVEMENT IN MOL'DING.

Specification forming part of Letters Patent N0. 57,822, dated September4, 1866.

To all whom 'it may concern:

Be it known that I, ARMON KING, of Utica, Oneida county, New York, haveinvented a new and useful Improvement in Molding where cores are to beformed in green sand; and I do hereby declare that the following is afull and exact description of the same, reference being had totheaccompanyingdrawings, making a part of this specication, and to theletters of reference marked thereon.

Figure l is a perspective view of the under part of the apparatus, withhalf of the pattern in place. Fig. 2 is a sectional view of the wholethrough the center.

My improvement consists in forming what is known in molding as a matchfor each part ot' the pattern, and so incasing them that when the partsare brought together the matches and the pattern become a mold, in whichthe core may be formed in place, and by removing the matches the otherparts of the pattern may be molded in the usual way.

A A represent the matches; B B, the pattern in place 5 C C C, the casingof the matches; D D, steady or guiding pins; E, an opening in the cases,through which the sand is passed into the center to form the core. F isthe core.

The matches may be formed of plaster-otparis, or of any other suitablematerial, in the usual way, or in any new way", and the parts must be soarranged that when the parts of the pattern are in place the steady orguiding pins will bring all the parts properly together.

The mode ot' operation is as follows: The parts ofthe pattern are putinplace, each part in its own match, and the match-cases are placed one onthe other, and brought together by the guide-pins and properly clamped.The sand is then passed in through the opening E and rammed down, andthe core is formed. The matches may then be successively removed and themolding proceed in the usual way.

This combination of matches and pattern, in the manner described, doesaway with the necessity of forming separate cores and the use ofcore-boxes and core-prints, and also supersedes the slow and tediousprocess ot' tucking in the sand and forming the part by hand, andenables the workmen to execute more rapidly and with greater ease andaccuracy than by any other known process.

I claim- Matehplates constructed substantially as described, and used inconnection with patterns foriorming cores for sand-molds, in the mannerset forth.

AnMoN KING.

Witnesses:

A. MELHIUCH, J. TRIPP, Jr.

